diff --git a/etcs/install.sh b/etcs/install.sh
index d413d37..0bb8eae 100755
--- a/etcs/install.sh
+++ b/etcs/install.sh
@@ -7,12 +7,11 @@ pip3 install numpy pandas flask smbus2 pyserial gunicorn
 cp -R hostapd/ /etc
 cp dnsmasq.conf /etc
 cp rc.local /etc
+cp interfaces-terahz /etc/network/interfaces.d/
+
 cp -R ../frontend/* /var/www/html
 mkdir -p /usr/local/lib/terahz
 cp -R ../backend/* /usr/local/lib/terahz
-cd /etc/hostapd
-chmod +x edit_ssid.sh
-./edit_ssid.sh
 
 systemctl unmask dnsmasq hostapd lighttpd
 systemctl enable dnsmasq hostapd lighttpd
diff --git a/etcs/interfaces-terahz b/etcs/interfaces-terahz
new file mode 100644
index 0000000..50ee3a9
--- /dev/null
+++ b/etcs/interfaces-terahz
@@ -0,0 +1,3 @@
+iface wlan0
+  address 192.168.1.1
+  netmask 255.255.255.0